Hole patching slurry, preparation method and applications thereof
A slurry and hole-filling technology, which is applied to coatings, electrical components, circuits, etc., can solve problems such as contamination, low sales price of pinhole cells, and pollution of normal cells, and achieve good hole-filling performance
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[0025] The present invention will be further described in conjunction with specific examples below, but it should be pointed out that the pore repairing slurry of the present invention and its preparation method and use are not limited to such specific components or proportions. Those skilled in the art can obviously understand that the following explanations can be directly applied to other similar components or proportions not specified herein even without any adjustment or modification.
[0026] The pore-filling slurry used in the solar silicon pinhole sheet of the present invention consists of 75-85% of special glass powder and 10-25% of organic carrier. The particle size of the glass powder is 0.1-2.5 μm, the composition of the glass powder (weight percent): Bi 2 o 3 75%~85%, SiO 2 2~10%, Al 2 o 3 1~5%, B 2 o 3 5~20%, other additives 2~8%. The organic carrier is composed of an organic solvent, an organic polymer and a dispersant, wherein the organic solvent is ...
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